aoinsettias’ bright red “petals” aren’t flowers at all — they’re modified leaves called bracts, with the true flowers in the tiny yellow center. Learn about the plant’s Aztec roots, how it became a ...
American Journal of Botany, Vol. 100, No. 3 (March 2013), pp. 628-632 (5 pages) Premise of the study: Nectar is the most common reward provided by animal-pollinated flowers. Diversity in position and ...
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